<h2 id="label">Label</h2>

<p>
  <h1>h1 is important
    <span class="label">Normal</span>
  </h1>
  <h2>h2 is important too
    <span class="label success">Success</span>
  </h2>
  <h3>Is h3 important?
    <span class="label warning">Warning</span>
  </h3>
  <h4>h4 is not so important
    <span class="label error">Error</span>
  </h4>
  <p>p is normal text
    <span class="label">Normal</span>
  </p>
</p>